Which one of the following is a correct electronic configuration of sodium ?

The schematic atomic structure of four elements is given below. Observe and choose the right statement.

Match the following :
List -I :
(a) Frequency of distribution of the emitted radiation from a black body
(b) Spin quantum numbers(m_s)
(c) Angular Momentum
(d) All orbital have equal energy

List - II :
(i) degeneracy
(ii) temperature dependent
(iii) vector quantity
(iv) mass times velocity times radius 

Codes:

An isoelectronic species are

$$\begin{gathered} \mathrm{a}\left){\mathrm{Na}}^{+} \\ \mathrm{b}\right){\mathrm{Al}}^{3+} \\ \mathrm{c}\left){\mathrm{Mg}}^{2+} \\ \mathrm{d}\right){\mathrm{Ca}}^{2+} \end{gathered}$$

Nitrogen (atomic number $7$) and phosphorus (atomic number $15$) belong to group $15$  of the Periodic Table. Write the electronic configuration of these two elements. Which one of these will be more electronegative? Why? 

What do you understand by the term electronic configuration? State Bohr-Bury's scheme of electronic configuration.